android-calculatorpp-114: "Calculator while typing" option is ignored

Fixes#114

android-app/src/main/java/org/solovyev/android/calculator/AndroidCalculator.java

@@ -104,6 +104,11 @@ public class AndroidCalculator implements Calculator, CalculatorEventListener, S
 		return calculator.evaluate(operation, expression, sequenceId);
 	}
 
+	@Override
+	public boolean isCalculateOnFly() {
+		return calculator.isCalculateOnFly();
+	}
+
 	@Override
 	public boolean isConversionPossible(@Nonnull Generic generic, @Nonnull NumeralBase from, @Nonnull NumeralBase to) {
 		return calculator.isConversionPossible(generic, from, to);